{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["spouse", "country of birth", "founded", "members"], "input": "By a fortunate coincidence he was introduced to  singer   Sasha  who engaged Klein to write for his second album and helped him to sign a contract with Warner Music ."}
{"spouse": [], "country of birth": [], "founded": [], "members": []}